Manual scraping-machine.



PATENTED AUG. 27, 1907. H. w. BLAISDELL;

MANUAL SGRAPING MACHINE.

WITNESSES:

APPLIOATIOI FILED NOV. 18, 1904.

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H. W. BLAISDELL.

MANUAL SORAPING MACHINE.

APPLICATION IILBD NOV.16, 1904.

WITNESSES:

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PATENTED AUG. 27. 1907.-

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AIPLIGATION TILED NOV. 16. 1904.

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No. 864,151. PATENTED AUG. 27, 1907.

' I H. w BLAISDELL.

MANUAL SCRAPING MACHINE.

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WIT/158858. INVENTOR MTTORNEY vnr nouns PETERS :o., Iusumcron. A c

UNITED STATES PATENT OFFICE.

HIRAM W. BLAISDELL, OF LOS ANGELES, CALIFORNIA.

MANUAL SCRAPING-MACHINE.

To all whom it may concern:

Be it known that I, HIRAM W. BLAISDELL, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements in ManualScraping-Machin es and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to means for operating upon filtration plants orfilter beds, and particularly to means constructed to operate upon slowsand filters; and some of the objects of the invention are to providemeans of this general character which are simple and cheap in operationand effective for the purpose intended.

Another object of the invention is to provide means for removing theupper or surface portion of filtering material from filtration plants orfilter beds, or to scrape the same; and to discharge or dump thematerial so removed or scraped into piles or rows upon the filter.

It is also an object of the invention to provide ineans for movablysupporting the machine upon the surface or crust of a filtration plantor filter bed in such a manner that the weight of the machine will beequally and uniformly distributed over the entire surface whereon themachine rests, irrespective of any irregularities or unevenness in thesurface of the'filter.

Furthermore an object of the invention is to provide a machineconstructed to travel upon the surface of a filter or other body whichis propelled by an internal combustion motor or driving apparatus, bymeans of which the machine requires no connection with the source ofmotive power or otherwise.

With these, and other, objects in view the invention consistsessentially in the construction, combination and arrangements of partssubstantially as more fully described in the following specification,and as illustrated in the accompanying drawings forming part of thisapplication in which Figure 1 is a top plan view of a machine embodyingthis invention; Fig. 2 is a side elevational view of the same; Fig. 3 isa longitudinal, central, sectional view of the machine; Fig. 4 is afront elevational view of the same; Fig. 5 illustrates a detail of aportion of the traction device or traveling support shown in Fig. 2;Fig. 6 is a detail view of a modified form or arrangement of theconstruction illustrated in Fig. 5; Fig. 7 is a detail view of thetraveling support represented in Fig. 1; and Fig. 8 is a detailed Viewof the traveling support shown in Fig. 3. Fig. 9 is a plan view of aportion of the driving mechanism.

Similar characters of reference designate corresponding parts throughoutthe several views.

Although this invention has particular relation to use upon or inconnection with filtration plants or filter- Specification of LettersPatent.

Application filed November 16, 1904:. $orial No. 233,002.

Patented Aug. 27, 1907.

beds, and is so shown and described in this application, yet it is notlimited or confined to such use, but is capable of employment for manyother purposes, and the right is reserved to use the invention whereversuch use can be accomplished without materially changing theconstruction and operation, of the instrumentalities herein shown anddescribed.

Before the machine is put into operation the water, upon the filter bedto be operated upon, should be drawn off partially or entirely tofacilitate the operation of the machine.

The diminution in the yield of filtration plants or slow sand filters isevidence that the surface thereof has become clogged, and that the upperor surface portion of the filtering material must be removed, in otherwords the filter must be scraped, which is now accomplished by men usingshovels and placing the removed material in piles to be conveyed away inwheelbarrows, at a great expense of time and labor.

By means of this invention it is intended to accomplish the scraping ofthe filter, or the removal of the upper or surface portion of thefiltering material mechanically, and to likewise effect the discharge ofthe removed material into piles or rows.

Referring to the drawings, reference character 1 designates a frame orcasing, of any suitable form or construction, provided with a socket orcasting 2 for the reception of a handle or steering device 3, by meansof which the machine may be guided or directed during the operationthereof.

The main frame is preferably provided with bearings 4, Fig. 2,constructed to receive a shaft 5, whereon is movably mounted the sideplates or members 7 of the supporting or traction frame, wherein aremounted sprocket wheels 8, carrying sprocket chains 9, the links ofwhich are preferably mounted in, or connected with, brackets 10,attached to transverse slats or strips 11, substantially as illustratedparticularly in Figs. 1, 2 and 3 of the drawings.

Attached to the slats or plates 11, preferably crosswise thereof, Figs.1 and 7, are one or more flexible or resilient tubes 12, desirablysimilar to the inflatable tires of vehicles, and these tubes are adaptedto be inflated with fluid to the desired degree, as will be readilyunderstood; and in Figs. 3 and 8 of the drawings there is shownaflexible or resilient tube 12 secured or attached to each of the slatsor plates 11, longitudinally of the same, but in this construction thetubes last mentioned are not designed or intended to be infiated, as inthe construction shown in Figs. 1 and 7; while in Figs. 2, 5 and 6strips of resilient material 6 are shown attached to, or secured upon,the plates or strips 11, both longitudinally and transversely thereof,as illustrated respectively in Figs. 5 and 6 of the drawings.

By means of this construction a soft and flexible bearing surface isprovided for the supporting frame, and one whereby the weight of themachine will be uniformly distributed over the entire surface whereonthe machine rests, irrespective of the irregularities or unevenness inthe contour of such surface, thus preventing the breaking of the crustor surface at the highest points by the travel or weight of the machine.

The importance of this feature of construction will be appreciated bythose familiar with the art of filtration by means of slow sand filters,and acquainted with the manner of treating and operating the same.

The side pieces of the mainframe are preferably extended at the forwardend thereof to form curved portions 13, wherein are formed slots 14,constructed to receive adjusting bolts or devices 15, for the connectionof the side pieces or extensions 16 of a shoe or regulating device 17,substantially as shown.

Slidably mounted in or upon the forward end 18 of the main frame aretraveling bearings 19, carrying a shaft 20, whereon is splined asprocket wheel 21, chained to a sprocket wheel 22 in an upwardly curvedarm 23, formed on, or connected with, the end 18 of the frame, and onthe shaft of the last mentioned sprocket wheel is secured anothersprocket wheel 23, chained to sprocket wheel 24, on the shaft of thedriving pulley of the elevator, as subsequently more fully explained.

Formed on, or connected with, the end portions of the shaft 20 are rightand left hand flights, or endless screw conveyers, 25, constructed to beprojected laterally from one side or the other side of the machine,Figs. 1 and 4, the shaft 20 being also mounted in stationary orfixedbearing 26, preferably connected with the end 18 of the main frame,essentially as illustrated.

The reciprocation or alternate extension and retraction of the auxiliaryor winged conveyers 25 are preferably effected by means of cords orropes 26 and 27, connected with the sliding or traveling bearings 19,and passing around sheaves or rollers 28, upon the main frame of themachine, and around rollers 29 in the end of the handle 3, and the cordsor ropes 26 and 27 may be provided with knobs or hand devices 30 tofacilitate the operation thereof.

A shaft 31, preferably mounted in the forward portion of the main frame,desirably carries right and left hand flights or endless screw conveyers32, constructed to progress the material towards the middle of themachine, where it is desirably taken up by a bucket, or other, elevator33, passing over a driving pulley 34, on the shaft of the sprocket wheel24, and over a tail pulley 34, on the shaft 31, of the main conveyer orscraper 32, whereby the latter is driven or actuated by the travel ofthe conveyer, which travel is preferably effected through the mediationof the gear wheel 35, on the shaft of the driving pulley 34, of theelevator, with which gear wheel meshes an idler 35 engaging a pinion 36,on a shaft 37, carrying a large sprocket wheel 38, chained to thedriving pinion 39 on the shaft of an internal coinbustion engine, ordriving apparatus 40, as will be readily understood.

A receiver or hopper 41 is preferably formed on, or connected with, theupright portion 42 of the machine, and the receiver or hopper ispreferably provided with a discharging orifice 43, which is preferablyclosed by means of a hinged or pivoted cover or section 44, constructedto be raised when it is desired to discharge the contents of the hopper,after the same has been partially or entirely filled with the fouledmaterial discharged thereinto by the elevator 33.

The machine is preferably constructed to be progressed or propelled in aforward or in a rearward direction respectively, by means of a sprocket45, upon the driving shaft of the gasolene engine, or other drivingapparatus 40, which sprocket is chained to the sprocket wheel 46, on theshaft of which is mounted a pinion 47, meshing with a large gear wheel48 on the shaft of which is mounted a pinion 49 meshing with a largegear wheel 50, on a shaft 51, whereon is feathered a clutch 52,constructed to engage with a clutch member 53, carried by a pinion 54,loose on the shaft 51, and meshing with a gear wheel 55, loosely mountedon a counter shaft 60, and having secured thereto a pinion 56, meshingwith a gear wheel 57, loose upon the shaft 51, and carrying a pinion 58,meshing with a gear 59, keyed on the shaft 60, carrying sprocket wheel65, chained to sprocket wheel 66, on the propelling shaft which carriesone set of sprocket wheels 8, whereover passes the supporting ortraction device; by means of this construction is the machine propelledin a forward direction at a slow rate of speed; and, by throwing theclutch 52 out of engage ment with the clutch-member 53 and intoengagement with the clutch member 61, carried by the pinion 62, motionis imparted to the latter, and from thence to the idler 63, meshing withthe pinion 64, fast upon the counter-shaft 60, thereby propelling themachine in a rearward direction at a high rate of speed.

The operation of the machine will be readily understood from theforegoing description when taken in connection with the accompanyingdrawings and the following explanation thereof.

The machine being in operating position the engine 40 is started therebyimparting motion to the sprocket 45, chained to the sprocket Wheel 46,on the shaft whereof is mounted pinion 47, meshing with the large gearwheel 48, carrying the pinion 49 meshing with gear wheel 50 on the shaft51, the clutch 52 being in engagment'with the clutch member 53 securedto the pinion 54, thereby imparting motion to the gear 55, pinion 56,carried thereby, gear 57 pinion 58, carried by the latter, and gear 59,secured upon the countershaft 60, carrying the sprocket wheel 65,chained to the sprocket 66, on the propelling shaft carrying the drivingsprocket wheels 8, which actuate the supporting or traction device,whereby the machine is propelled in a forward direction over, or incontact with, the surface of the filter, preferably at a low rate ofspeed.

The machine is desirably propelled in a rearward direction at a higherrate of speed, by throwing the clutch 52 into engagement with the clutchmember 61, on the pinion 62, which meshes with idler 63, engaging thepinion 64, on the counter-shaft 60, carrying the pinion 65, chained tothe sprocket wheel 66, on the said propelling shaft.

The engine 40 likewise imparts motion to the sprocket 39, chained to thesprocket 38, on the shaft 37, carrying the pinion 36, driving the gear35, on the shaft of the driving pulley 35 of the elevator 33, and alsoimparting motion to the sprocket 24, chained to the sprocket 23, on thesame shaft with sprocket 22 chained to sprocket 21 splined on the shaft20, of the auxiliary conveyer, whereby the travel of the elevatoroperates the main conveyer, the tail pulley of the elevator being keyedon the shaft of the main conveyer, and also the auxiliary conveyer, bythe means just described.

As the machine travels over the surface to be operated upon the mainconveyer scrapes the material towards the center of the'machine, whereit is taken up by the elevator and discharged into the receiver, fromwhence it is dumped or allowed to escape, whenever the door or movablesection thereof is raised; and when it is desired to scrape the surfacebetween or around the piers, buttresses or other obstructions the ropes26 and 27 are operated to project the auxiliary or wing conveyer in thedesired direction to effect the scraping of such surface. i i

It is not desired to limit or confine this invention to the specificconstruction, combination and arrangement of parts herein shown anddescribed, and the right is reservedto make all such changes in, andmodifications of, the same, as come within the spirit and scope of thisinvention.

Claims 1. A machine for removing material from filters com prising sandremoval means, a supporting frame therefor, a second frame movablyconnected therewith, and a resilient traction device supported in saidsecond frame adapted to travel on the surface of the filter bed to support the operating parts.

2. A machine for removing material from filters com prising sand removalmeans, a supporting frame therefor, a second frame movahly connectedtherewith and inflatable resilient traction means supported in saidsecond frame adapted to rest on the surface of the filter bed to supportthe operating parts.

A machine for removing material from filters comprising sand removalmeans, a supporting frame therefor, a second frame movably connectedtherewith, and a pneumatic traction device supported in said secondframe adapted to travel on the surface of the filter and to support theoperating parts.

4. A machine for removing material from filters and the like providedwith means for collecting the material in a heap, means for elevatingthe same into the machine and means for intermittently discharging thesame therefrom.

5. A machine for removing material from filters and the like providedwith means for collecting the material in a heap, means for elevatingthe same into the machine and means for discharging the same in a heapon the surface of the filter bed. i

G. A machine for removing material from filters and the like providedwith means for collecting the material in a heap, means for-elevatingthe same into the machine, a hopper into which said elevating meansdischarges said material and means permitting said hopper to be emptiedintermittently.

7. A machine for removing material from the surface of filter bedsprovided with a resilient supporting and progressing device fordistributing the weight of the machine on the surface of the filter,means governed by the surface 'of the filter bed for regulating thedepth of material removed, a receiver for the material, a device foreffecting the discharge of the material from the receiver, an internalcombustion motor, and means for operating the parts.

8. A manually guided machine for removing material from the surface offilters provided with a flexible supporting device on endless means fordistributing the weight of the machine on the surface of the filters,means governed by the surface to be operated upon for regulating thedepth of material removed, a receiver for the material, a device foreffecting the discharge of the material from the receiver and means foroperating the parts.

9. A manually guided machine for removing material from the surface offilters, provided with a flexible supporting device on endless means fordistributing the weight of the machine on the surface of the filter,means governed by the surface of the filter bed for regulating the depthof material to be removed, a receiver for the material, a device foreffecting the discharge of the material from the receiver and aninternal combustion engine to operate the parts.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing witnesses at Los Angeles, in the countyof Los Angeles, State of California this second day of November 1904:.

HIRAM W. BLAISDELL.

Witnesses H. T. Monnow, MIeNoN Form.

